{"action":"Upgrade omniauth-auth0 to 2.4.1 or later.","affected":[{"fixed":"2.4.1","introduced":"2.3.0"}],"component":"omniauth-auth0","cve_ids":["CVE-2020-15240"],"ecosystem":"RubyGems","epss":0.00803,"exploited":false,"fixed_versions":["2.4.1"],"ghsa_id":"GHSA-58r4-h6v8-jcvm","id":"tcs_01M5KEGYM835KTF2VNGDQTSNJ9","modified_at":"2026-07-08T05:59:47.963127968Z","published_at":"2020-11-03T02:31:38Z","references":["https://osv.dev/vulnerability/GHSA-58r4-h6v8-jcvm","https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm","https://nvd.nist.gov/vuln/detail/CVE-2020-15240","https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a","https://github.com/auth0/omniauth-auth0","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/omniauth-auth0/CVE-2020-15240.yml","https://rubygems.org/gems/omniauth-auth0"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"GHSA-58r4-h6v8-jcvm","url":"https://osv.dev/vulnerability/GHSA-58r4-h6v8-jcvm"}],"summary":"Regression in JWT Signature Validation"}